public function validateDoubleRoom($attribute, $params)
 {
     $validatequery = Trroomschedule::findOne(['date' => $this->date, 'RoomID' => $this->RoomID]);
     if ($validatequery) {
         $this->addError($attribute, 'This Room is already booked');
     }
 }
 /**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = Trroomschedule::find();
     $query->joinWith(['patient', 'medicaladv', 'room']);
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     $dataProvider->sort->attributes['patient'] = ['asc' => ['mspatient.FirstName' => SORT_ASC], 'desc' => ['mspatient.FirstName' => SORT_DESC]];
     $dataProvider->sort->attributes['medicaladv'] = ['asc' => ['msmedicaladv.FirstName' => SORT_ASC], 'desc' => ['msmedicaladv.FirstName' => SORT_DESC]];
     $dataProvider->sort->attributes['room'] = ['asc' => ['msroom.RoomName' => SORT_ASC], 'desc' => ['msroom.RoomName' => SORT_DESC]];
     if (!($this->load($params) && $this->validate())) {
         // uncomment the following line if you do not want to return any records when validation fails
         // $query->where('0=1');
         $query->orderBy(['date' => SORT_DESC]);
         return $dataProvider;
     }
     $query->andFilterWhere(['RoomscheduleID' => $this->RoomscheduleID, 'date' => $this->date])->andFilterWhere(['like', 'msmedicaladv.FirstName', $this->medicaladv])->andFilterWhere(['like', 'mspatient.FirstName', $this->patient])->andFilterWhere(['like', 'msroom.RoomName', $this->room]);
     return $dataProvider;
 }
 /**
  * Finds the Trroomschedule model based on its primary key value.
  * If the model is not found, a 404 HTTP exception will be thrown.
  * @param integer $id
  * @return Trroomschedule the loaded model
  * @throws NotFoundHttpException if the model cannot be found
  */
 protected function findModel($id)
 {
     if (($model = Trroomschedule::findOne($id)) !== null) {
         return $model;
     } else {
         throw new NotFoundHttpException('The requested page does not exist.');
     }
 }